Paste your JSON below:

Why Use JSON Validator?

JSON Validator helps you quickly check whether your JSON syntax is correct. It highlights errors with exact line and column numbers, saving debugging time.

Key Features

  • Instant JSON syntax validation
  • Exact error line and column detection
  • Beautify and minify JSON
  • Upload or paste JSON instantly
  • Copy or download formatted JSON
  • Dark mode support

How to Use JSON Validator

  1. Paste your JSON into the editor.
  2. Click Validate to check for errors.
  3. Fix issues highlighted with line and column numbers.
  4. Use Beautify or Minify if needed.

Frequently Asked Questions

Why is my JSON invalid?

JSON can be invalid due to missing commas, incorrect quotes, extra brackets, or trailing commas. The validator shows the exact location of the error.

Does it support large JSON files?

Yes. This tool supports large JSON files. Performance depends on your browser and device.

Is my data stored?

No. All JSON validation happens locally in your browser. Your data is never uploaded or stored.